"She always wears Spanx on the red carpet. Good ­underwear is really important, it smoothes you out."

Indeed! Even slimmer stars like Jessica Chastain have been known to rock the body-toning spandex miracles.

But just because the Skyfall crooner appreciates a smooth silhouette, doesn't mean she doesn't love her body as is.

Gaelle clarified:

"Adele is really OK with how she looks. I don’t think she ever lacked confidence. She doesn’t have that insecurity that a lot of other people I dress have."

How can anyone with a voice and face like that EVER be insecure?

Gaelle also revealed the reason behind Adele's love of black, and it's NOT what you may think!

She added:

"Adele always wants to wear black because she loves Johnny Cash and he wore black. She also loves June Carter Cash because she and Johnny were so much in love and they had this wonderful marriage. Sometimes she’ll look at herself in the mirror and say, "Oh I look like her, Gaelle!"'

We had no idea she loved the Man in Black so much! You have EXCELLENT taste, Miz Adkins!